FROM   python:3.9-slim

WORKDIR /app

ENV PYTHONUNBUFFERED=1
ENV TZ=Asia/Shanghai

RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

COPY backend/requirements.txt requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

COPY backend/ .

RUN mkdir -p data logs

EXPOSE 8000

CMD ["python", "-m", "uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]